Reactions of mono- and dihaloalkanes with mixed solutions of chalcogens in basic and reducing systems

Potentiality of generation in basic-reducing systems of mixed selenotelluride-, sulfotelluride- and sulfoselenotelluride-anions with their subsequent alkylation by mono- and dihaloalkanes was studied. It was ascertained that the mixtures sulfur-selenium, sulfur-tellurium, selenium-tellurium and sulfur-selenium-tellurium are readily soluble in the system hydrazine-hydrate-alkali with formation of chalcogenide-anions. Their alkylation by ethyl bromide gives rise to formation of mainly diethyldisulfide, -diselenide and -ditellurid. Tellurium interacts with dichloromethane in the presence of sulfur with formation of poly(methyleneditelluride) in the presence of selenium poly(methyleneselenotellurides) are formed, while in the mixture sulfur-selenium-tellurium polymers containing all the components are formed